Mouthpiece for medical purposes



FIG. 1 is a perspective view of a mouthpiece for medical purposes showing our new design;

FIG. 2 is a front view thereof, the rear view being a mirror image thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a cross-sectional view taken in the direction of 6-6 in FIG. 2; and,

FIG. 7 is a cross-sectional view taken in the direction 7-7 in FIG. 4. 

CLAIM The ornamental design for a mouthpiece for medical purposes, substantially as shown and described. 